The fifth chapter determines integrities of some special kinds of graphs such as grid , tori , line graph , composite graph and gives a relationship between the edge - integrity of a graph and integrity of its line graph , and then like the study of integrity , some relationships between the edge - integrity and some other parameters are given , then the maximum network is determined on the basis of order and edge - integrity are given 給出了幾類特殊圖,如格子圖、線圖、復(fù)合圖等的邊完整度;研究了圖的邊完整度與其線圖的完整度之間的關(guān)系;研究了圖的邊完整度與圖的其它參數(shù)之間的關(guān)系;研究了邊完整度給定條件下的最大網(wǎng)絡(luò)圖。