\n| \u6570\u636e\u5bb9\u5668<\/td>\n | list\/tuple\/set\/dict<\/td>\n | \u5b58\u50a8\u591a\u9879\u6570\u636e\u7684\u5bb9\u5668<\/td>\n | \u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u4ee3\u7801\u793a\u4f8b：<\/p>\n print(100) # \u6574\u6570（int）
\nprint(3.14) # \u6d6e\u70b9\u6570（float）
\nprint(True) # \u5e03\u5c14（bool），\u9996\u5b57\u6bcd\u5fc5\u987b\u5927\u5199
\nprint("hello world") # \u5b57\u7b26\u4e32（str）
\nprint(None) # \u7a7a\u503c（NoneType）
\n\u5e03\u5c14\u7c7b\u578b\u7684\u672c\u8d28\u662f\u6574\u6570：True \u7b49\u4ef7\u4e8e 1，False \u7b49\u4ef7\u4e8e 0
\nprint(True + 1) # 2
\nprint(True – 1) # 0 <\/p>\n \u5173\u4e8e\u5e03\u5c14\u503c\u7684\u4e66\u5199：True\u3001False \u662f Python \u7684\u5173\u952e\u5b57，\u9996\u5b57\u6bcd\u5fc5\u987b\u5927\u5199\u3002\u5199\u6210\u5c0f\u5199\u7684 true\u3001false \u4f1a\u88ab\u5f53\u4f5c\u666e\u901a\u53d8\u91cf\u540d\u5904\u7406，\u76f4\u63a5\u4f7f\u7528\u4f1a\u62a5 NameError（\u53d8\u91cf\u672a\u5b9a\u4e49\u9519\u8bef）\u3002<\/p>\n \u5c0f\u7ed3：<\/p>\n \u5b57\u9762\u91cf\u662f\u7a0b\u5e8f\u4e2d\u76f4\u63a5\u4e66\u5199\u7684\u56fa\u5b9a\u503c\u3002<\/li>\n\u5404\u7c7b\u578b\u4e66\u5199\u5f62\u5f0f：\u6574\u6570\u3001\u5c0f\u6570\u76f4\u63a5\u5199（10\u30013.14）；\u5b57\u7b26\u4e32\u7528\u5f15\u53f7\u5305\u88f9；\u5e03\u5c14\u503c\u5199 True \/ False；\u7a7a\u503c\u5199 None\u3002<\/li>\n1.2 \u53d8\u91cf<\/h4>\n\u53d8\u91cf：\u7a0b\u5e8f\u4e2d\u7528\u6765\u5b58\u50a8\u6570\u636e\u7684\u5bb9\u5668\u3002\u7ecf\u5e38\u53d8\u5316\u6216\u9700\u8981\u91cd\u590d\u4f7f\u7528\u7684\u6570\u636e，\u901a\u5e38\u5b58\u653e\u5728\u53d8\u91cf\u4e2d\u3002<\/p>\n \u5b9a\u4e49\u683c\u5f0f：<\/p>\n \u53d8\u91cf\u540d = \u53d8\u91cf\u503c<\/p>\n \u683c\u5f0f\u8bf4\u660e：<\/p>\n \n- \u53d8\u91cf\u540d：\u7ed9\u5b58\u50a8\u6570\u636e\u7684\u7a7a\u95f4\u8d77\u7684\u540d\u5b57<\/li>\n
- =：\u8d4b\u503c\u8fd0\u7b97\u7b26，\u628a\u7b49\u53f7\u53f3\u4fa7\u7684\u503c\u8d4b\u4e88\u5de6\u4fa7\u7684\u53d8\u91cf<\/li>\n
- \u53d8\u91cf\u503c：\u53d8\u91cf\u4e2d\u5b58\u50a8\u7684\u5177\u4f53\u6570\u636e<\/li>\n<\/ul>\n
\u4ee3\u7801\u793a\u4f8b（\u52a8\u6001\u7c7b\u578b）：<\/p>\n # Python \u662f\u52a8\u6001\u7c7b\u578b\u8bed\u8a00：\u540c\u4e00\u4e2a\u53d8\u91cf\u53ef\u4ee5\u5148\u540e\u7ed1\u5b9a\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e
\n# （\u4f46\u9879\u76ee\u5f00\u53d1\u4e2d，\u63a8\u8350\u4e00\u4e2a\u53d8\u91cf\u53ea\u5b58\u50a8\u4e00\u79cd\u7c7b\u578b\u7684\u6570\u636e）
\nnum = 1114.1
\nprint(num) # 1114.1
\nnum = num + 1 # \u7528\u53d8\u91cf\u7684\u65e7\u503c\u53c2\u4e0e\u8fd0\u7b97，\u518d\u628a\u7ed3\u679c\u8d4b\u56de\u53d8\u91cf
\nprint(num) # 1115.1
\nnum = 'ok' # \u53d8\u91cf\u91cd\u65b0\u7ed1\u5b9a\u5230\u5b57\u7b26\u4e32
\nprint(num) # ok
\nnum = True # \u53d8\u91cf\u91cd\u65b0\u7ed1\u5b9a\u5230\u5e03\u5c14\u503c
\nprint(num) # True <\/p>\n \u4e3a\u4ec0\u4e48 print() \u8f93\u51fa\u7684\u662f\u503c，\u800c\u4e0d\u662f\u5185\u5b58\u5730\u5740？ Python \u7684\u53d8\u91cf\u672c\u8d28\u662f"\u540d\u5b57 \u2192 \u5bf9\u8c61"\u7684\u7ed1\u5b9a\u5173\u7cfb，\u53d8\u91cf\u91cc\u4fdd\u5b58\u7684\u786e\u5b9e\u662f\u5bf9\u8c61\u7684\u5f15\u7528（\u53ef\u7406\u89e3\u4e3a\u5730\u5740）\u3002\u4f46 print() \u7684\u8bbe\u8ba1\u76ee\u6807\u5c31\u662f\u7ed9\u4eba\u770b\u7684，\u5b83\u4f1a\u81ea\u52a8\u628a\u5bf9\u8c61\u5f53\u524d\u7684\u5185\u5bb9\u8f6c\u6362\u6210\u53ef\u8bfb\u6587\u672c\u8f93\u51fa，\u6240\u4ee5\u770b\u5230\u7684\u662f"\u503c"\u800c\u4e0d\u662f\u5730\u5740\u2014\u2014\u8fd9\u4e0e C\u3001Java \u7b49\u8bed\u8a00\u6253\u5370\u5bf9\u8c61\u9ed8\u8ba4\u8f93\u51fa\u5730\u5740\u7684\u4e60\u60ef\u4e0d\u540c，\u662f Python \u6709\u610f\u7684\u8bbe\u8ba1\u3002\u5982\u679c\u786e\u5b9e\u60f3\u67e5\u770b\u5bf9\u8c61\u7684\u5185\u5b58\u5730\u5740，\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u51fd\u6570 id(\u53d8\u91cf)\u3002<\/p>\n \u4e00\u6761\u8bed\u53e5\u5b9a\u4e49\u591a\u4e2a\u53d8\u91cf：\u5de6\u53f3\u4e24\u4fa7\u7528\u9017\u53f7\u5206\u9694，\u6309\u4f4d\u7f6e\u4e00\u4e00\u5bf9\u5e94\u8d4b\u503c：<\/p>\n a, b = 1, "Python" # a = 1，b = "Python"
\nnumBase, incr = 20.7, 50<\/p>\n \u8f93\u51fa\u53d8\u91cf\u7684\u5e38\u7528\u65b9\u5f0f（\u4ee5"\u5b57\u7b26\u4e32 + \u6570\u5b57"\u6df7\u5408\u8f93\u51fa\u4e3a\u4f8b）：<\/p>\n numBase = 20.7
\nincr = 50
\n\u65b9\u5f0f\u4e00：print \u591a\u53c2\u6570\u8f93\u51fa，\u9017\u53f7\u5206\u9694，\u5404\u90e8\u5206\u4e4b\u95f4\u81ea\u52a8\u52a0\u4e00\u4e2a\u7a7a\u683c
\nprint("\u672a\u6765\u7b2c\u4e00\u4e2a\u6708\u7684\u64ad\u653e\u91cf:", numBase + incr)
\n\u65b9\u5f0f\u4e8c：f-string \u683c\u5f0f\u5316（\u63a8\u8350），\u53d8\u91cf\u76f4\u63a5\u5d4c\u5165\u5b57\u7b26\u4e32
\nprint(f"\u672a\u6765\u7b2c\u4e00\u4e2a\u6708\u7684\u64ad\u653e\u91cf: {numBase + incr}")
\n\u65b9\u5f0f\u4e09：\u5b57\u7b26\u4e32\u62fc\u63a5，\u975e\u5b57\u7b26\u4e32\u5fc5\u987b\u5148\u7528 str() \u8f6c\u6362
\nprint("\u672a\u6765\u7b2c\u4e00\u4e2a\u6708\u7684\u64ad\u653e\u91cf: " + str(numBase + incr)) <\/p>\n \u6848\u4f8b：B\u7ad9\u8bfe\u7a0b\u64ad\u653e\u91cf<\/p>\n \u9700\u6c42：\u8bfe\u7a0b\u57fa\u7840\u64ad\u653e\u91cf\u4e3a 20.7 \u4e07，\u6bcf\u6708\u65b0\u589e\u64ad\u653e\u91cf 50 \u4e07，\u8f93\u51fa\u672a\u6765\u4e24\u4e2a\u6708\u6bcf\u4e2a\u6708\u7684\u64ad\u653e\u603b\u91cf\u3002<\/p>\n base = 20.7 # \u57fa\u7840\u64ad\u653e\u91cf（\u4e07）
\nadd = 50 # \u6bcf\u6708\u65b0\u589e\u64ad\u653e\u91cf（\u4e07）
\nmonth1 = base + add # \u7b2c\u4e00\u4e2a\u6708：\u57fa\u7840 + \u65b0\u589e
\nmonth2 = month1 + add # \u7b2c\u4e8c\u4e2a\u6708：\u7b2c\u4e00\u4e2a\u6708 + \u65b0\u589e
\nprint(f"\u7b2c\u4e00\u4e2a\u6708\u64ad\u653e\u603b\u91cf：{month1}\u4e07") # \u7b2c\u4e00\u4e2a\u6708\u64ad\u653e\u603b\u91cf：70.7\u4e07
\nprint(f"\u7b2c\u4e8c\u4e2a\u6708\u64ad\u653e\u603b\u91cf：{month2}\u4e07") # \u7b2c\u4e8c\u4e2a\u6708\u64ad\u653e\u603b\u91cf：120.7\u4e07 <\/p>\n \u5c0f\u7ed3：<\/p>\n - \u53d8\u91cf\u662f\u5b58\u50a8\u6570\u636e\u7684\u5bb9\u5668，\u5b9a\u4e49\u683c\u5f0f：\u53d8\u91cf\u540d = \u53d8\u91cf\u503c\u3002<\/li>\n
- \u53d8\u91cf\u7684\u7528\u9014：\u8f93\u51fa\u6253\u5370\u3001\u53c2\u4e0e\u8ba1\u7b97\u3001\u8bb0\u5f55\u6570\u636e\u3002<\/li>\n
- \u6ce8\u610f\u4e8b\u9879：\n
\n- \u4e00\u4e2a\u53d8\u91cf\u540c\u4e00\u65f6\u523b\u53ea\u5b58\u50a8\u4e00\u4e2a\u503c，\u91cd\u590d\u8d4b\u503c\u4f1a\u8986\u76d6\u65e7\u503c<\/li>\n
- \u53d8\u91cf\u5fc5\u987b\u5148\u8d4b\u503c（\u5b9a\u4e49）\u624d\u80fd\u4f7f\u7528<\/li>\n
- \u4e00\u6761\u8bed\u53e5\u53ef\u4ee5\u5b9a\u4e49\u591a\u4e2a\u53d8\u91cf：a, b = 1, "Python"<\/li>\n<\/ul>\n<\/li>\n
1.3 \u6807\u8bc6\u7b26<\/h4>\n\u6807\u8bc6\u7b26：\u7a0b\u5e8f\u5458\u5728\u4ee3\u7801\u4e2d\u4e3a\u53d8\u91cf\u3001\u51fd\u6570\u3001\u7c7b\u7b49\u5143\u7d20\u6240\u8d77\u7684\u540d\u5b57\u3002<\/p>\n \u547d\u540d\u89c4\u5219（\u5f3a\u5236\u89c4\u5b9a，\u8fdd\u53cd\u4f1a\u62a5\u9519）：<\/p>\n - \u53ea\u80fd\u5305\u542b\u5b57\u6bcd（a-z\u3001A-Z）\u3001\u6570\u5b57（0-9）\u3001\u4e0b\u5212\u7ebf（_）<\/li>\n
- \u4e0d\u80fd\u4ee5\u6570\u5b57\u5f00\u5934<\/li>\n
- \u4e0d\u80fd\u4f7f\u7528 Python \u5173\u952e\u5b57：True\u3001False\u3001None\u3001and\u3001or\u3001if\u3001else\u3001elif\u3001for\u3001while \u7b49<\/li>\n
- \u4e25\u683c\u533a\u5206\u5927\u5c0f\u5199：age\u3001Age\u3001AGE \u662f\u4e09\u4e2a\u4e0d\u540c\u7684\u6807\u8bc6\u7b26<\/li>\n
\u5408\u6cd5\u4e0e\u4e0d\u5408\u6cd5\u6807\u8bc6\u7b26\u793a\u4f8b：<\/p>\n \n\u6807\u8bc6\u7b26\u662f\u5426\u5408\u6cd5\u8bf4\u660e<\/tr>\n \n\n| name<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5<\/td>\n<\/tr>\n | \n| Name<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5（\u533a\u5206\u5927\u5c0f\u5199，\u4e0e name \u4e0d\u540c）<\/td>\n<\/tr>\n | \n| _name<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5<\/td>\n<\/tr>\n | \n| __name<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5<\/td>\n<\/tr>\n | \n| na_me<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5<\/td>\n<\/tr>\n | \n| name_<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5<\/td>\n<\/tr>\n | \n| na$me<\/td>\n | \u274c<\/td>\n | \u5305\u542b\u975e\u6cd5\u5b57\u7b26 $<\/td>\n<\/tr>\n | \n| and<\/td>\n | \u274c<\/td>\n | \u5173\u952e\u5b57<\/td>\n<\/tr>\n | \n| or<\/td>\n | \u274c<\/td>\n | \u5173\u952e\u5b57<\/td>\n<\/tr>\n | \n| true<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5\u6807\u8bc6\u7b26（\u5c0f\u5199 true \u4e0d\u662f\u5173\u952e\u5b57，\u53ef\u4ee5\u8fd0\u884c），\u4f46\u5bb9\u6613\u4e0e\u5e03\u5c14\u503c True \u6df7\u6dc6，\u4e0d\u5efa\u8bae\u4f7f\u7528<\/td>\n<\/tr>\n | \n| False<\/td>\n | \u274c<\/td>\n | \u5173\u952e\u5b57<\/td>\n<\/tr>\n | \n| 6name<\/td>\n | \u274c<\/td>\n | \u6570\u5b57\u5f00\u5934<\/td>\n<\/tr>\n | \n| name6<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5<\/td>\n<\/tr>\n | \n| naME<\/td>\n | \u2705<\/td>\n | \u5408\u6cd5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u547d\u540d\u89c4\u8303（\u5efa\u8bae，\u4e0d\u9075\u5b88\u4e0d\u4f1a\u62a5\u9519）：<\/p>\n - \u89c1\u540d\u77e5\u610f<\/li>\n
- \u591a\u4e2a\u5355\u8bcd\u7528\u4e0b\u5212\u7ebf\u8fde\u63a5（\u86c7\u5f62\u547d\u540d\u6cd5）<\/li>\n
- \u82f1\u6587\u5b57\u6bcd\u5168\u90e8\u5c0f\u5199<\/li>\n
PEP 8：PEP（Python Enhancement Proposal，Python \u589e\u5f3a\u63d0\u6848）\u662f Python \u793e\u533a\u7684\u6838\u5fc3\u6280\u672f\u6587\u6863\u4e0e\u6807\u51c6\u5316\u673a\u5236；PEP 8 \u662f\u5176\u4e2d\u9488\u5bf9\u4ee3\u7801\u98ce\u683c\u7684\u6307\u5357（https:\/\/peps.python.org\/pep-0008）\u3002<\/p>\n \u547d\u540d\u89c4\u8303\u793a\u4f8b：<\/p>\n \n\u53d8\u91cf\u540d\u8bc4\u4ef7<\/tr>\n \n\n| name<\/td>\n | \u2705 \u7b26\u5408\u89c4\u8303<\/td>\n<\/tr>\n | \n| age<\/td>\n | \u2705 \u7b26\u5408\u89c4\u8303<\/td>\n<\/tr>\n | \n| update_time<\/td>\n | \u2705 \u7b26\u5408\u89c4\u8303<\/td>\n<\/tr>\n | \n| my_name<\/td>\n | \u2705 \u7b26\u5408\u89c4\u8303<\/td>\n<\/tr>\n | \n| user_first_name<\/td>\n | \u2705 \u7b26\u5408\u89c4\u8303<\/td>\n<\/tr>\n | \n| a<\/td>\n | \u26a0\ufe0f \u4e0d\u63a8\u8350（\u610f\u4e49\u4e0d\u660e\u786e）<\/td>\n<\/tr>\n | \n| a1\u3001a2<\/td>\n | \u26a0\ufe0f \u4e0d\u63a8\u8350（\u610f\u4e49\u4e0d\u660e\u786e）<\/td>\n<\/tr>\n | \n| updatetime<\/td>\n | \u26a0\ufe0f \u4e0d\u63a8\u8350（\u672a\u7528\u4e0b\u5212\u7ebf\u5206\u9694）<\/td>\n<\/tr>\n | \n| myname<\/td>\n | \u26a0\ufe0f \u4e0d\u63a8\u8350（\u672a\u7528\u4e0b\u5212\u7ebf\u5206\u9694）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u5c0f\u7ed3：<\/p>\n - \u547d\u540d\u89c4\u5219：\u53ea\u80fd\u5305\u542b\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf；\u6570\u5b57\u4e0d\u80fd\u5f00\u5934；\u4e0d\u80fd\u4f7f\u7528\u5173\u952e\u5b57；\u4e25\u683c\u533a\u5206\u5927\u5c0f\u5199\u3002<\/li>\n
- \u547d\u540d\u89c4\u8303：\u89c1\u540d\u77e5\u610f；\u591a\u4e2a\u5355\u8bcd\u7528\u4e0b\u5212\u7ebf\u8fde\u63a5；\u5168\u90e8\u5c0f\u5199\u3002<\/li>\n
1.4 \u53d8\u91cf\u4ea4\u6362\u6848\u4f8b<\/h4>\n\u6848\u4f8b1：\u4e24\u4e2a\u53d8\u91cf a = 10\u3001b = 20，\u4ea4\u6362\u5b83\u4eec\u7684\u503c\u5e76\u8f93\u51fa\u3002<\/p>\n a = 10
\nb = 20
\n\u65b9\u6cd5\u4e00：\u501f\u52a9\u4e34\u65f6\u53d8\u91cf（\u901a\u7528\u5199\u6cd5，\u4efb\u4f55\u8bed\u8a00\u90fd\u9002\u7528）
\ntemp = a # \u5148\u628a a \u7684\u503c 10 \u4fdd\u5b58\u5230 temp
\na = b # \u628a b \u7684\u503c 20 \u8d4b\u7ed9 a
\nb = temp # \u628a temp \u4e2d\u4fdd\u5b58\u7684 10 \u8d4b\u7ed9 b
\n\u65b9\u6cd5\u4e8c：Python \u7279\u6709\u7684\u591a\u5143\u8d4b\u503c（\u63a8\u8350）
\na, b = b, a # \u7b49\u53f7\u53f3\u8fb9\u5148\u6574\u4f53\u6c42\u503c，\u518d\u6309\u4f4d\u7f6e\u4f9d\u6b21\u8d4b\u7ed9\u5de6\u8fb9
\nprint(f"a = {a}, b = {b}") # a = 20, b = 10 <\/p>\n \u9519\u8bef\u5199\u6cd5：<\/p>\n a = b # a \u53d8\u4e3a 20，\u539f\u6765\u7684 10 \u4e22\u5931
\nb = a # b \u4ecd\u4e3a 20，\u4ea4\u6362\u5931\u8d25<\/p>\n \u6848\u4f8b2：\u4e09\u4e2a\u53d8\u91cf a = 100\u3001b = 200\u3001c = 300，\u5c06 a, b, c \u7684\u503c\u5206\u522b\u8d4b\u7ed9 c, a, b，\u5e76\u8f93\u51fa\u3002<\/p>\n a, b, c = 100, 200, 300
\na, b, c = c, a, b # \u7b49\u53f7\u53f3\u8fb9\u5148\u6c42\u51fa (300, 100, 200)，\u518d\u4f9d\u6b21\u8d4b\u503c
\nprint(f"a = {a}, b = {b}, c = {c}") # a = 300, b = 100, c = 200 <\/p>\n \u4e8c\u3001\u5e38\u89c1\u6570\u636e\u7c7b\u578b<\/h3>\n2.1 \u57fa\u7840\u6570\u636e\u7c7b\u578b<\/h4>\n\n\u6807\u51c6\u540d\u79f0\u63cf\u8ff0\u8bf4\u660e\u793a\u4f8b<\/tr>\n \n\n| int<\/td>\n | \u6574\u6570<\/td>\n | \u6570\u5b57\u7c7b\u578b，\u5b58\u653e\u6574\u6570<\/td>\n | 10\u3001-5<\/td>\n<\/tr>\n | \n| float<\/td>\n | \u6d6e\u70b9\u6570<\/td>\n | \u6570\u5b57\u7c7b\u578b，\u5b58\u653e\u5c0f\u6570<\/td>\n | 8.5\u30013.14\u30011.0\u3001-3.5<\/td>\n<\/tr>\n | \n| str<\/td>\n | \u5b57\u7b26\u4e32<\/td>\n | \u7528\u5f15\u53f7\u5305\u88f9\u7684\u6587\u672c<\/td>\n | "Python"<\/td>\n<\/tr>\n | \n| bool<\/td>\n | \u5e03\u5c14<\/td>\n | \u63cf\u8ff0\u771f\u548c\u5047<\/td>\n | True\u3001False<\/td>\n<\/tr>\n | \n| NoneType<\/td>\n | \u7a7a\u503c<\/td>\n | \u8868\u793a\u7a7a\u6216\u65e0\u503c，\u4ec5\u5305\u542b\u4e00\u4e2a\u503c None<\/td>\n | None<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n2.2 \u67e5\u770b\u6570\u636e\u7c7b\u578b<\/h4>\n\u65b9\u6cd5\u4e00：type() \u2014\u2014 \u76f4\u63a5\u8fd4\u56de\u6570\u636e\u7684\u7c7b\u578b\u3002<\/p>\n type(\u8981\u67e5\u770b\u7c7b\u578b\u7684\u6570\u636e)<\/p>\n print(type("Hello")) # <class 'str'>
\nprint(type(10)) # <class 'int'>
\nprint(type(3.14)) # <class 'float'>
\nprint(type(True)) # <class 'bool'>
\nprint(type(None)) # <class 'NoneType'>
\nnum = 5.0
\nprint(num) # 5.0（\u867d\u7136\u6570\u503c\u4e0a\u662f\u6574\u6570，\u4f46\u5e26\u5c0f\u6570\u70b9）
\nprint(type(num)) # <class 'float'>
\n\u5e03\u5c14\u503c\u53c2\u4e0e\u7b97\u672f\u8fd0\u7b97\u65f6\u6309\u6574\u6570\u5904\u7406：True \u662f 1，False \u662f 0
\nprint(type(True + 1)) # <class 'int'> <\/p>\n \u65b9\u6cd5\u4e8c：isinstance() \u2014\u2014 \u5224\u65ad\u6570\u636e\u662f\u5426\u5c5e\u4e8e\u6307\u5b9a\u7c7b\u578b，\u8fd4\u56de\u5e03\u5c14\u503c（True \/ False）\u3002<\/p>\n isinstance(\u6570\u636e, \u7c7b\u578b)<\/p>\n num = 5.0
\nprint(isinstance(num, int)) # False
\nprint(isinstance(num, float)) # True
\nnum2 = -100
\nprint(isinstance(num2, int)) # True
\nprint(isinstance(num2, float)) # False
\nprint(isinstance(num2, bool)) # False <\/p>\n isinstance() \u7684\u7528\u9014：\u5f53\u9700\u8981"\u6839\u636e\u6570\u636e\u7684\u7c7b\u578b\u51b3\u5b9a\u4e0b\u4e00\u6b65\u505a\u4ec0\u4e48"\u65f6\u4f7f\u7528，\u5178\u578b\u573a\u666f\u662f\u6821\u9a8c\u6570\u636e\u7684\u7c7b\u578b\u662f\u5426\u5408\u6cd5（\u4f8b\u5982\u6821\u9a8c\u51fd\u6570\u53c2\u6570\u3001\u5904\u7406\u5916\u90e8\u4f20\u5165\u7684\u6570\u636e）：<\/p>\n print(isinstance(100, int)) # True
\nprint(isinstance("abc", str)) # True
\nprint(isinstance(3.14, (int, float))) # True：\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e5f\u53ef\u4ee5\u662f\u7c7b\u578b\u5143\u7ec4，\u5339\u914d\u5176\u4e2d\u4efb\u610f\u4e00\u4e2a\u5373\u6210\u7acb<\/p>\n type() \u4e0e isinstance() \u7684\u533a\u522b：type() \u8fd4\u56de\u6570\u636e\u7684\u51c6\u786e\u7c7b\u578b；isinstance() \u8fd4\u56de"\u662f\/\u5426"\u7684\u5224\u65ad\u7ed3\u679c，\u5e76\u4e14\u652f\u6301\u5224\u65ad"\u662f\u5426\u5c5e\u4e8e\u67d0\u4e2a\u7c7b\u578b（\u6216\u5176\u5b50\u7c7b）"，\u5b9e\u9645\u5f00\u53d1\u4e2d\u66f4\u5e38\u7528\u3002<\/p>\n \u8bf4\u660e：\u53d8\u91cf\u672c\u8eab\u6ca1\u6709\u7c7b\u578b，type(\u53d8\u91cf) \u5f97\u5230\u7684\u662f\u53d8\u91cf\u5f53\u524d\u6240\u5b58\u50a8\u6570\u636e\u7684\u7c7b\u578b\u3002<\/p>\n 2.3 \u5b57\u7b26\u4e32<\/h4>\n\u5b57\u7b26：\u6587\u672c\u4e16\u754c\u7684\u57fa\u672c\u5355\u4f4d，\u4e00\u4e2a\u5b57\u6bcd\u3001\u4e00\u4e2a\u6570\u5b57\u3001\u4e00\u4e2a\u6807\u70b9\u7b26\u53f7\u3001\u4e00\u4e2a\u6c49\u5b57\u90fd\u662f\u4e00\u4e2a\u5b57\u7b26\u3002\u5b57\u7b26\u4e32：\u7531\u82e5\u5e72\u5b57\u7b26\u7ec4\u6210\u7684\u5e8f\u5217，\u7528\u5f15\u53f7\u5305\u88f9\u3002<\/p>\n \u4e09\u79cd\u5b9a\u4e49\u65b9\u5f0f：<\/p>\n # 1. \u53cc\u5f15\u53f7\u5b9a\u4e49
\ns1 = "Hello"
\n2. \u5355\u5f15\u53f7\u5b9a\u4e49：\u5b57\u7b26\u4e32\u672c\u8eab\u542b\u6709\u5355\u5f15\u53f7\u65f6，\u53ef\u7528 \\\\ \u8f6c\u4e49；
\n\u66f4\u7b80\u6d01\u7684\u505a\u6cd5\u662f\u5916\u5c42\u76f4\u63a5\u7528\u53cc\u5f15\u53f7（\u5185\u5916\u5f15\u53f7\u8981\u4e00\u4e00\u914d\u5bf9，\u4e0d\u80fd\u4ea4\u53c9）
\ns2 = 'It's very interesting'
\ns2 = "It's very interesting" # \u63a8\u8350\u5199\u6cd5
\n3. \u4e09\u5f15\u53f7\u5b9a\u4e49：\u652f\u6301\u591a\u884c\u6587\u672c（\u524d\u4e24\u79cd\u65b9\u5f0f\u505a\u4e0d\u5230）
\ns3 = """
\n\u5c0a\u656c\u7684\u5ba2\u6237：
\n\u611f\u8c22\u60a8\u9009\u62e9\u6211\u4eec\u516c\u53f8\u7684\u4ea7\u54c1\u3002
\n\u6211\u4eec\u5c06\u4e3a\u60a8\u7aed\u8bda\u670d\u52a1\u3002
\n\u795d\u597d～
\n""" <\/p>\n \u5e38\u89c1\u8f6c\u4e49\u5b57\u7b26：<\/p>\n \n\u8f6c\u4e49\u5b57\u7b26\u540d\u79f0\u4f5c\u7528<\/tr>\n \n\n| \\\\'<\/td>\n | \u5355\u5f15\u53f7<\/td>\n | \u5728\u5355\u5f15\u53f7\u5b57\u7b26\u4e32\u4e2d\u8868\u793a\u5355\u5f15\u53f7\u672c\u8eab<\/td>\n<\/tr>\n | \n| \\\\"<\/td>\n | \u53cc\u5f15\u53f7<\/td>\n | \u5728\u53cc\u5f15\u53f7\u5b57\u7b26\u4e32\u4e2d\u8868\u793a\u53cc\u5f15\u53f7\u672c\u8eab<\/td>\n<\/tr>\n | \n| \\\\n<\/td>\n | \u6362\u884c\u7b26<\/td>\n | \u5f00\u59cb\u65b0\u7684\u4e00\u884c<\/td>\n<\/tr>\n | \n| \\\\t<\/td>\n | \u5236\u8868\u7b26<\/td>\n | \u7f29\u8fdb\u4e00\u4e2a Tab \u7684\u5bbd\u5ea6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u8f6c\u4e49\u5b57\u7b26\u793a\u4f8b：<\/p>\n print('It\\\\'s OK') # It's OK（\u8f6c\u4e49\u5355\u5f15\u53f7）
\nprint("say \\\\"hi\\\\"") # say "hi"（\u8f6c\u4e49\u53cc\u5f15\u53f7）
\nprint("\u7b2c\u4e00\u884c\\\\n\u7b2c\u4e8c\u884c") # \u5206\u4e24\u884c\u8f93\u51fa
\nprint("\u59d3\u540d:\\\\tTom") # \u5192\u53f7\u540e\u9694\u4e00\u4e2a Tab \u518d\u8f93\u51fa Tom<\/p>\n \u5c0f\u7ed3：<\/p>\n - \u5b57\u7b26\u4e32\u7684\u4e09\u79cd\u5b9a\u4e49\u65b9\u5f0f：\u5355\u5f15\u53f7（'Python'）\u3001\u53cc\u5f15\u53f7（"Python"）\u3001\u4e09\u5f15\u53f7（"""Python"""）\u3002<\/li>\n
- \u5e38\u89c1\u8f6c\u4e49\u5b57\u7b26：\\\\'\u3001\\\\"\u3001\\\\n\u3001\\\\t\u3002<\/li>\n
- \u4f7f\u7528\u539f\u5219：\n
\n- \u5355\u5f15\u53f7\u4e0e\u53cc\u5f15\u53f7\u5b8c\u5168\u7b49\u6548，\u9879\u76ee\u4e2d\u4fdd\u6301\u4e00\u79cd\u5199\u6cd5\u5373\u53ef<\/li>\n
- \u4e09\u5f15\u53f7\u9002\u5408\u591a\u884c\u6587\u672c\u7b49\u573a\u666f<\/li>\n<\/ul>\n<\/li>\n
2.4 \u5b57\u7b26\u4e32\u62fc\u63a5<\/h4>\n\u5f88\u591a\u65f6\u5019\u9700\u8981\u628a\u591a\u4e2a\u5b57\u7b26\u4e32\u62fc\u63a5\u8d77\u6765，\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 +\u3002<\/p>\n # \u5199\u6cd5\u4e00：\u76f8\u90bb\u7684\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u4f1a\u81ea\u52a8\u62fc\u63a5（\u4ec5\u9002\u7528\u4e8e\u5b57\u9762\u91cf，\u4e2d\u95f4\u4e0d\u80fd\u653e\u53d8\u91cf）
\nslogan = "\u4eba\u751f\u82e6\u77ed " "," "\u55b5\u800c\u54aa\u4e4b"
\nprint(slogan) # \u4eba\u751f\u82e6\u77ed ,\u55b5\u800c\u54aa\u4e4b
\n\u5199\u6cd5\u4e8c：\u4f7f\u7528 + \u53f7\u62fc\u63a5（\u5b57\u9762\u91cf\u3001\u53d8\u91cf\u90fd\u53ef\u4ee5）
\nslogan = "\u4eba\u751f\u82e6\u77ed " + "," + "\u55b5\u800c\u54aa\u4e4b"
\nprint(slogan)
\ns1 = "\u4eba\u751f\u82e6\u77ed"
\ns2 = "\u6211\u7528Python"
\nprint("\u5409\u591a\u00b7\u8303\u7f57\u82cf\u59c6：" + s1 + "，" + s2) <\/p>\n \u6ce8\u610f：+ \u53ea\u80fd\u62fc\u63a5\u5b57\u7b26\u4e32\u4e0e\u5b57\u7b26\u4e32，\u65e0\u6cd5\u76f4\u63a5\u62fc\u63a5\u975e\u5b57\u7b26\u4e32\u7c7b\u578b，\u975e\u5b57\u7b26\u4e32\u5fc5\u987b\u5148\u7528 str() \u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u3002<\/p>\n \u6848\u4f8b：\u8f93\u51fa\u4e2a\u4eba\u4fe1\u606f<\/p>\n \u9700\u6c42：\u8f93\u51fa"\u5927\u5bb6\u597d，\u6211\u662flily，\u4eca\u5e7418\u5c81，\u5b66\u4e60\u7684\u4e13\u4e1a\u662f\u8ba1\u7b97\u673a\u79d1\u5b66，\u7231\u597dPython\u3001Java"\u3002<\/p>\n name = "lily"
\nage = 18 # age \u662f int \u7c7b\u578b
\npro = "\u8ba1\u7b97\u673a\u79d1\u5b66"
\nhobby = "Python\u3001Java"
\n+ \u53f7\u53ea\u8ba4\u5b57\u7b26\u4e32，age \u662f\u6574\u6570，\u6240\u4ee5\u5fc5\u987b\u5148 str(age) \u8f6c\u6210\u5b57\u7b26\u4e32\u518d\u62fc\u63a5
\nmessage = "\u5927\u5bb6\u597d，\u6211\u662f" + name + "，\u4eca\u5e74" + str(age) + "\u5c81，\u5b66\u4e60\u7684\u4e13\u4e1a\u662f" + pro + "，\u7231\u597d" + hobby
\nprint(message) <\/p>\n + \u62fc\u63a5\u7684\u5c40\u9650：\u5199\u6cd5\u5197\u957f\u3001\u975e\u5b57\u7b26\u4e32\u5fc5\u987b\u624b\u52a8\u8f6c\u6362，\u4e8e\u662f\u6709\u4e86\u4e0b\u9762\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6848\u3002<\/p>\n 2.5 \u5b57\u7b26\u4e32\u683c\u5f0f\u5316<\/h4>\n2.5.1 \u4f7f\u7528 % \u5360\u4f4d\u7b26<\/h5>\n\u8bb0\u5fc6\u65b9\u6cd5：\u628a %s \u8bfb\u4f5c"\u8fd9\u91cc\u7559\u4e00\u4e2a\u7a7a\u4f4d"\u3002% \u8868\u793a\u5360\u4f4d，s \u8868\u793a\u628a\u586b\u5165\u7684\u6570\u636e\u5148\u8f6c\u6210\u5b57\u7b26\u4e32（s = string）\u518d\u653e\u5230\u8fd9\u4e2a\u4f4d\u7f6e\u3002<\/p>\n \u597d\u5904：\u56e0\u4e3a\u4f1a\u81ea\u52a8\u8f6c\u6210\u5b57\u7b26\u4e32，\u6240\u4ee5\u4efb\u4f55\u7c7b\u578b\u7684\u6570\u636e\u90fd\u80fd\u586b\u5165 %s，\u4e0d\u9700\u8981\u624b\u52a8 str() \u8f6c\u6362\u3002<\/p>\n # \u4e00\u4e2a\u5360\u4f4d\u7b26：\u5b57\u7b26\u4e32\u540e\u5199 % \u53d8\u91cf
\ns1 = "lily"
\nprint("\u5927\u5bb6\u597d，\u6211\u662f%s，\u6b22\u8fce\u5927\u5bb6\u8fdb\u5165Python\u8bfe\u7a0b\u7684\u5b66\u4e60" % s1)
\n\u591a\u4e2a\u5360\u4f4d\u7b26：\u6570\u636e\u7528\u62ec\u53f7\u5305\u8d77\u6765，\u6309\u987a\u5e8f\u4e00\u4e00\u5bf9\u5e94
\ns1 = "\u4eba\u751f\u82e6\u77ed"
\ns2 = "\u6211\u7528Python"
\nprint("\u5409\u591a\u00b7\u8303\u7f57\u82cf\u59c6：%s，%s" % (s1, s2))
\n%s \u53ef\u4ee5\u63a5\u6536\u4efb\u610f\u7c7b\u578b，\u6570\u5b57\u4e5f\u4f1a\u81ea\u52a8\u8f6c\u6210\u5b57\u7b26\u4e32
\nprint("\u6211\u4eca\u5e74%s\u5c81" % 18) <\/p>\n 2.5.2 \u4f7f\u7528 f-string（\u63a8\u8350）<\/h5>\n\u5728\u5b57\u7b26\u4e32\u524d\u52a0 f，\u7528 {} \u76f4\u63a5\u5d4c\u5165\u53d8\u91cf\u6216\u8868\u8fbe\u5f0f，\u8bed\u6cd5\u6700\u7b80\u6d01\u3001\u53ef\u8bfb\u6027\u6700\u597d\u3002<\/p>\n name = "\u6d9b\u54e5"
\nage = 18
\nprint(f"\u5927\u5bb6\u597d，\u6211\u662f{name}，\u4eca\u5e74{age}\u5c81") # {} \u4e2d\u4e5f\u53ef\u4ee5\u5199\u8868\u8fbe\u5f0f，\u5982 {age + 1}
\ns1 = "\u4eba\u751f\u82e6\u77ed"
\ns2 = "\u6211\u7528Python"
\nprint(f"\u5409\u591a\u00b7\u8303\u7f57\u82cf\u59c6：{s1}，{s2}") <\/p>\n \u5c0f\u7ed3：<\/p>\n - \u5b57\u7b26\u4e32\u62fc\u63a5：\u4f7f\u7528 + \u53f7；\u4e0d\u80fd\u76f4\u63a5\u62fc\u63a5\u975e\u5b57\u7b26\u4e32，\u5176\u4ed6\u7c7b\u578b\u9700\u5148 str(…) \u8f6c\u6362\u3002<\/li>\n
- % \u683c\u5f0f\u5316："%s" % \u53d8\u91cf \/ "%s\u2026%s" % (\u53d8\u91cf1, \u53d8\u91cf2)，\u4efb\u610f\u7c7b\u578b\u81ea\u52a8\u8f6c\u5b57\u7b26\u4e32\u3002<\/li>\n
- f-string \u683c\u5f0f\u5316（\u63a8\u8350）：f"\u5185\u5bb9{\u53d8\u91cf\/\u8868\u8fbe\u5f0f}"\u3002<\/li>\n
\u4e09\u3001\u8f93\u5165\u4e0e\u8f93\u51fa<\/h3>\ninput() \u7528\u4e8e\u63a5\u6536\u952e\u76d8\u8f93\u5165，\u7a0b\u5e8f\u4f1a\u6682\u505c\u7b49\u5f85\u7528\u6237\u8f93\u5165，\u8f93\u5165\u7684\u5185\u5bb9\u4ee5\u8fd4\u56de\u503c\u7684\u5f62\u5f0f\u4ea4\u7ed9\u53d8\u91cf：<\/p>\n s = input(\u63d0\u793a\u4fe1\u606f)<\/p>\n name = input("\u8bf7\u8f93\u5165\u60a8\u7684\u59d3\u540d：")
\nprint(f"\u6b22\u8fce\u60a8，{name}")
\nage = input("\u8bf7\u8f93\u5165\u60a8\u7684\u5e74\u9f84：")
\nprint(f"\u60a8\u4eca\u5e74{age}\u5c81") <\/p>\n \u6ce8\u610f：\u65e0\u8bba\u7528\u6237\u8f93\u5165\u4ec0\u4e48，input() \u8fd4\u56de\u7684\u4e00\u5f8b\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\u3002\u5982\u679c\u9700\u8981\u53c2\u4e0e\u6570\u5b66\u8fd0\u7b97，\u5fc5\u987b\u5148\u505a\u7c7b\u578b\u8f6c\u6362（int() \/ float()）\u3002<\/p>\n 3.2 \u8f93\u51fa \u2014\u2014 print()<\/h4>\nprint() \u7528\u4e8e\u628a\u6570\u636e\u8f93\u51fa\u5230\u63a7\u5236\u53f0，\u4e00\u6b21\u53ef\u4ee5\u8f93\u51fa\u591a\u4e2a\u6570\u636e，\u7528\u9017\u53f7\u5206\u9694：<\/p>\n print(\u6570\u636e, …)<\/p>\n print("Hello World")
\nprint(10)
\nprint(3.14)
\nprint("\u7ed3\u679c\u662f:", 10 + 5) # \u591a\u4e2a\u6570\u636e\u7528\u9017\u53f7\u5206\u9694，\u8f93\u51fa\u65f6\u81ea\u52a8\u4ee5\u7a7a\u683c\u9694\u5f00<\/p>\n 3.3 \u7c7b\u578b\u8f6c\u6362<\/h4>\n\n\u8f6c\u6362\u51fd\u6570\u4f5c\u7528\u793a\u4f8b<\/tr>\n \n\n| int(…)<\/td>\n | \u8f6c\u4e3a\u6574\u6570<\/td>\n | int("10") \u2192 10<\/td>\n<\/tr>\n | \n| str(…)<\/td>\n | \u8f6c\u4e3a\u5b57\u7b26\u4e32<\/td>\n | str(18) \u2192 "18"<\/td>\n<\/tr>\n | \n| float(…)<\/td>\n | \u8f6c\u4e3a\u6d6e\u70b9\u6570<\/td>\n | float("3.14") \u2192 3.14<\/td>\n<\/tr>\n | \n| bool(…)<\/td>\n | \u8f6c\u4e3a\u5e03\u5c14\u503c<\/td>\n | bool(0) \u2192 False<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u6848\u4f8b1：\u94f6\u884c\u5361 ATM \u53d6\u6b3e<\/p>\n \u9700\u6c42：\u94f6\u884c\u5361\u4f59\u989d 10000 \u5143，\u6839\u636e\u8f93\u5165\u7684\u5bc6\u7801\u548c\u53d6\u6b3e\u91d1\u989d\u6267\u884c\u53d6\u6b3e，\u53d6\u6b3e\u5b8c\u6bd5\u540e\u5c55\u793a\u4f59\u989d\u3002<\/p>\n balance = 10000
\npassword = input("\u8bf7\u8f93\u5165\u5bc6\u7801：")
\namount = int(input("\u8bf7\u8f93\u5165\u53d6\u6b3e\u91d1\u989d：")) # input \u8fd4\u56de\u5b57\u7b26\u4e32，\u5fc5\u987b\u8f6c\u6210\u6570\u5b57\u624d\u80fd\u53c2\u4e0e\u51cf\u6cd5
\nbalance -= amount # \u7b49\u6548\u4e8e balance = balance – amount
\nprint(f"\u53d6\u6b3e\u6210\u529f，\u5f53\u524d\u4f59\u989d：{balance}\u5143")<\/p>\n \u5173\u952e\u70b9：input() \u5f97\u5230\u7684\u662f\u5b57\u7b26\u4e32，\u5b57\u7b26\u4e32\u4e0d\u80fd\u548c\u6574\u6570\u505a\u51cf\u6cd5，\u6240\u4ee5\u8981\u7528 int() \u8f6c\u6362\u540e\u518d\u8ba1\u7b97\u3002<\/p>\n \u6848\u4f8b2：\u8ba1\u7b97\u4e24\u4e2a\u6570\u4e4b\u548c<\/p>\n \u9700\u6c42：\u6839\u636e\u7528\u6237\u8f93\u5165\u7684\u4e24\u4e2a\u6570\u5b57，\u8ba1\u7b97\u5b83\u4eec\u7684\u548c\u5e76\u8f93\u51fa\u3002<\/p>\n num1 = float(input("\u8bf7\u8f93\u5165\u7b2c\u4e00\u4e2a\u6570\u5b57："))
\nnum2 = float(input("\u8bf7\u8f93\u5165\u7b2c\u4e8c\u4e2a\u6570\u5b57："))
\nprint(f"\u4e24\u6570\u4e4b\u548c\u4e3a：{num1 + num2}")<\/p>\n \u5e38\u89c1\u9519\u8bef：\u5148\u62fc\u63a5\u3001\u540e\u8f6c\u6362\u662f\u9519\u7684\u3002<\/p>\n num1 = input("\u8bf7\u8f93\u5165\u7b2c\u4e00\u4e2a\u6570\u5b57：") # \u8f93\u5165 1，\u5f97\u5230\u5b57\u7b26\u4e32 "1"
\nnum2 = input("\u8bf7\u8f93\u5165\u7b2c\u4e8c\u4e2a\u6570\u5b57：") # \u8f93\u5165 2，\u5f97\u5230\u5b57\u7b26\u4e32 "2"
\nint(num1 + num2) # \u9519：\u5b57\u7b26\u4e32\u7684 + \u662f\u62fc\u63a5，"1" + "2" \u5f97\u5230 "12"，\u518d\u8f6c\u6210 12，\u4e0d\u662f 3
\nint(num1) + int(num2) # \u5bf9：\u5148\u628a\u6bcf\u4e2a\u5b57\u7b26\u4e32\u5404\u81ea\u8f6c\u6210\u6570\u5b57，\u518d\u505a\u52a0\u6cd5 <\/p>\n \u5c0f\u7ed3：<\/p>\n - \u83b7\u53d6\u7528\u6237\u8f93\u5165：s = input(\u63d0\u793a\u4fe1\u606f)，\u7ed3\u679c\u6c38\u8fdc\u662f\u5b57\u7b26\u4e32\u3002<\/li>\n
- \u7c7b\u578b\u8f6c\u6362：int(…)\u3001str(…)\u3001float(…)\u3001bool(…)\u3002<\/li>\n
\u56db\u3001\u8fd0\u7b97\u7b26<\/h3>\n4.1 \u7b97\u672f\u8fd0\u7b97\u7b26<\/h4>\n\u7b97\u672f\u8fd0\u7b97\u7b26\u7528\u4e8e\u6267\u884c\u57fa\u672c\u7684\u6570\u5b66\u8fd0\u7b97\u3002<\/p>\n \n\u8fd0\u7b97\u7b26\u63cf\u8ff0\u793a\u4f8b<\/tr>\n \n\n| +<\/td>\n | \u52a0\u6cd5<\/td>\n | 8 + 3 \u2192 11<\/td>\n<\/tr>\n | \n| –<\/td>\n | \u51cf\u6cd5<\/td>\n | 8 – 3 \u2192 5<\/td>\n<\/tr>\n | \n| *<\/td>\n | \u4e58\u6cd5<\/td>\n | 3 * 8 \u2192 24<\/td>\n<\/tr>\n | \n| \/<\/td>\n | \u9664\u6cd5<\/td>\n | 10 \/ 5 \u2192 2.0（\u7ed3\u679c\u4e00\u5b9a\u662f\u5c0f\u6570）<\/td>\n<\/tr>\n | \n| \/\/<\/td>\n | \u6574\u9664（\u5411\u4e0b\u53d6\u6574）<\/td>\n | 10 \/\/ 3 \u2192 3<\/td>\n<\/tr>\n | \n| %<\/td>\n | \u53d6\u4f59（\u6c42\u6a21）<\/td>\n | 10 % 3 \u2192 1（10 \u9664\u4ee5 3 \u53d6\u4f59\u6570）<\/td>\n<\/tr>\n | \n| **<\/td>\n | \u5e42（\u4e58\u65b9）<\/td>\n | 10 ** 3 \u2192 1000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u4ee3\u7801\u793a\u4f8b：<\/p>\n print(8 + 3) # 11
\nprint(8 – 3) # 5
\nprint(3 * 8) # 24
\nprint(10 \/ 5) # 2.0 \u9664\u6cd5\u7ed3\u679c\u6c38\u8fdc\u662f\u6d6e\u70b9\u6570
\nprint(10 \/\/ 3) # 3 \u53ea\u4fdd\u7559\u6574\u6570\u90e8\u5206
\nprint(10 % 3) # 1 \u4f59\u6570
\nprint(10 ** 3) # 1000 \u5e42\u8fd0\u7b97
\n\u4f18\u5148\u7ea7：() \u6700\u9ad8 > ** > * \/ \/\/ % > + –
\nprint(0.1 + 10 \/ 4 ** 2) # \u5148\u7b97 4**2=16，\u518d\u7b97 10\/16=0.625，\u6700\u540e\u52a0 0.1 \u2192 0.725 <\/p>\n \u6848\u4f8b1：\u8f93\u5165\u4e24\u4e2a\u6570 x \u4e0e y，\u5206\u522b\u8f93\u51fa x+y \u548c x-y \u7684\u7ed3\u679c\u3002<\/p>\n x = float(input("\u8bf7\u8f93\u5165x："))
\ny = float(input("\u8bf7\u8f93\u5165y："))
\nprint(f"x + y = {x + y}")
\nprint(f"x – y = {x – y}")<\/p>\n \u6d6e\u70b9\u6570\u7cbe\u5ea6\u635f\u5931：\u8ba1\u7b97\u673a\u5e95\u5c42\u7528\u4e8c\u8fdb\u5236\u5b58\u50a8\u6570\u636e，\u800c\u4e8c\u8fdb\u5236\u65e0\u6cd5\u7cbe\u786e\u8868\u793a\u6240\u6709\u5c0f\u6570（\u5c31\u50cf\u5341\u8fdb\u5236\u65e0\u6cd5\u7528\u6709\u9650\u4f4d\u6570\u5199\u51fa 1\/3），\u6240\u4ee5\u6d6e\u70b9\u8fd0\u7b97\u53ef\u80fd\u51fa\u73b0\u8bef\u5dee，\u4f8b\u5982 0.1 + 0.2 \u7684\u7ed3\u679c\u662f 0.30000000000000004\u3002\u8fd9\u662f\u6240\u6709\u7f16\u7a0b\u8bed\u8a00\u7684\u901a\u75c5，\u4e0d\u662f Python \u7684 bug\u3002\u4e00\u822c\u573a\u666f\u53ef\u4ee5\u7528 round(x, 2) \u56db\u820d\u4e94\u5165\u5230\u6307\u5b9a\u5c0f\u6570\u4f4d；\u5bf9\u7cbe\u5ea6\u8981\u6c42\u9ad8\u7684\u573a\u666f（\u5982\u91d1\u989d\u8ba1\u7b97）\u4f7f\u7528 decimal \u6a21\u5757\u3002<\/p>\n \u6848\u4f8b2：\u8f93\u5165\u4e09\u4e2a\u6574\u6570，\u8ba1\u7b97\u5e73\u5747\u6570\u3002<\/p>\n a = int(input("\u8bf7\u8f93\u5165\u7b2c\u4e00\u4e2a\u6574\u6570："))
\nb = int(input("\u8bf7\u8f93\u5165\u7b2c\u4e8c\u4e2a\u6574\u6570："))
\nc = int(input("\u8bf7\u8f93\u5165\u7b2c\u4e09\u4e2a\u6574\u6570："))
\navg = (a + b + c) \/ 3
\nprint(f"\u5e73\u5747\u6570\u4e3a：{avg}")<\/p>\n \u6848\u4f8b3：\u8f93\u5165\u68af\u5f62\u7684\u4e0a\u5e95\u3001\u4e0b\u5e95\u3001\u9ad8，\u8ba1\u7b97\u68af\u5f62\u9762\u79ef\u3002<\/p>\n upper = float(input("\u8bf7\u8f93\u5165\u4e0a\u5e95："))
\nlower = float(input("\u8bf7\u8f93\u5165\u4e0b\u5e95："))
\nheight = float(input("\u8bf7\u8f93\u5165\u9ad8："))
\narea = (upper + lower) * height \/ 2
\nprint(f"\u68af\u5f62\u9762\u79ef\u4e3a：{area}")<\/p>\n \u6848\u4f8b4：\u8f93\u5165\u5706\u7684\u534a\u5f84，\u8ba1\u7b97\u5706\u7684\u5468\u957f\u548c\u9762\u79ef（\u5468\u957f：2\u03c0r，\u9762\u79ef：\u03c0r\u00b2）\u3002<\/p>\n import math
\nr = float(input("\u8bf7\u8f93\u5165\u5706\u7684\u534a\u5f84："))
\ncircumference = 2 * math.pi * r
\narea = math.pi * r ** 2
\nprint(f"\u5706\u7684\u5468\u957f\u4e3a：{circumference}")
\nprint(f"\u5706\u7684\u9762\u79ef\u4e3a：{area}")<\/p>\n \u6848\u4f8b5：\u8ba1\u7b97\u8eab\u4f53\u8d28\u91cf\u6307\u6570 BMI（BMI = \u4f53\u91cd(kg) \/ \u8eab\u9ad8(m)\u00b2）\u3002<\/p>\n weight = float(input("\u8bf7\u8f93\u5165\u4f53\u91cd（kg）："))
\nheight = float(input("\u8bf7\u8f93\u5165\u8eab\u9ad8（m）："))
\nbmi = weight \/ (height ** 2)
\nprint(f"\u60a8\u7684BMI\u6307\u6570\u4e3a：{bmi}")<\/p>\n \u5c0f\u7ed3：<\/p>\n | | | | | | |