摘要：
>>> test1 = ["aaa","bbb","ccc","ddd","eee","fff","ggg"] >>> for i in test1: test1.remove(i) >>> test1 ['bbb', 'ddd', 'fff'] 阅读全文
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一、 >>> test1 = ["ccc","ddd","mmm"] >>> if test1: for i in test1: print(i) else: print("empty list") ccc ddd mmm >>> test1 = [] >>> if test1: for i in 阅读全文
摘要：
1、条件成立执行 >>> a = 50 >>> if a > 10: print("xxx") xxx >>> if a < 10: print("yyy") >>> if a == 50: print("zzz") zzz score = int(input("score=")) if 100 > 阅读全文
摘要：
zip()用于返回各个可迭代对象共同组成的元组。 >>> test1=["ccc","aaa","ddd","yyy","xxx"] >>> test2=(200,100,400,800,500) >>> test3="daceb" >>> for i in zip(test1,test2,test 阅读全文
摘要：
用于生成二元组。 >>> test1 = ["xxx","yyy","ddd","ccc","aaa"] >>> enumerate(test1) <enumerate object at 0x000001C1224ED780> >>> test2=enumerate(test1) >>> type 阅读全文
摘要：
>>> test1 = ["sss","ccc","aaa","ddd"] >>> test1.reverse() ## 就地反转 >>> test1 ['ddd', 'aaa', 'ccc', 'sss'] >>> test1.reverse() >>> test1 ['sss', 'ccc', 阅读全文
摘要：
>>> test1 = ["ccc","aaa","aaa","ccc","bbb","aaa","ddd","aaa"] >>> test1.count("aaa") 4 >>> for i in range(test1.count("aaa")-1): test1.remove("aaa") > 阅读全文
摘要：
1、求最大值和最小值 >>> test1 = [34,2,5,65,322,21,54] >>> temp = test1[0] >>> for i in test1: if i > temp: temp=i >>> temp 322 >>> for i in test1: if i < temp: 阅读全文
摘要：
1、 + 号拼接 >>> test1 = "abcd" >>> test2 = "opqr" >>> test3 = "xyzh" >>> test1 + test2 'abcdopqr' >>> test2 + test3 'opqrxyzh' >>> test2 + test1 + test3 阅读全文
摘要：
1、format()位置参数 >>> "abcdabdef".format() 'abcdabdef' >>> "abc{0}dabdef".format("YYYY","MMMM","OOOO") 'abcYYYYdabdef' >>> "abc{1}dabdef".format("YYYY"," 阅读全文